SE431183B

SE431183B - MAINTENANCE FOR MOTOR VEHICLES

Info

Publication number: SE431183B
Application number: SE8008992A
Authority: SE
Inventors: U Zillgitt; K-U Nonnenmacher
Original assignee: Bosch Gmbh Robert
Priority date: 1979-12-22
Filing date: 1980-12-19
Publication date: 1984-01-23
Also published as: IT8026766A0; SE8008992L; IT1134795B; DE2952217A1; FR2471883A1

Description

âHkß§ï95?2Ü*3 I huset 10, 11 är anordnad en elektrisk drivmotor 1U med en nedväxlingsanordníng. Denna bildas av en kuggväxel bestående av ett drev 15 och ett därmed samverkande kugghjul 16 samt en snäckväxel bestående av en i ett stycke med kugghjulet 1ö ut- formad snäckskruv 17 och ett snäckhjul 18, som är utformat i ett stycke med en i huset 10, 11 axiellt orörligt anordnad, vrídbar mutter 19 med muttergänga 20. 2H * 3 In the housing 10, 11 an electric drive motor 1U is provided with a downshift device. This is formed by a gear consisting of a gear 15 and a gear 16 cooperating therewith and a worm consisting of a worm screw 17 formed in one piece with the gear 1ö and a worm gear 18, which is formed in one piece with one in the housing 10, 11 axially immovably arranged, rotatable nut 19 with nut thread 20.

En hylsa 21 har ett parti med en yttergänga 22, som samverkar med muttergängan 20, samt ett profilutformat medbringarparti 23, som är axiellt styrt i en styrning 2H hos bottenplattan 10.A sleeve 21 has a portion with an outer thread 22, which cooperates with the nut thread 20, and a profile-shaped carrier portion 23, which is axially guided in a guide 2H of the bottom plate 10.

Hylsans 21 innerparti bildas av en borrning 25 och en därtill anslutande, profilutformad medbringaröppning 27.The inner part of the sleeve 21 is formed by a bore 25 and an associated, profile-shaped carrier opening 27.

En kolv 26 har ett i hylsans 21 medbringaröppning 27 styrt profilparti 28 med innergänga 29 samt ett som kulskâl 30 ut- format ändparti, som är pâsnäppt en ej visad kultapp hos strål- kastarreflektorn. En inställningsskruv 31 har ett manöverhand- tag 32, en med kolvens 26 ínnergänga 29 samverkande gängad tapp 33 samt ett mittparti 3H. Två i mittpartiet insatta ringar 35 bildar en första och en andra fläns, mellan vilka den med borrningen 25 försedda änden av hylsan 21 är vridbart men akiellt orörligt anordnad med hjälp av en fjäderbricka 36.A piston 26 has a profile portion 28 guided in the carrier opening 27 of the sleeve 21 with an inner thread 29 and an end portion designed as a ball shell 30, which is snapped onto a ball pin (not shown) of the headlight reflector. An adjusting screw 31 has an operating handle 32, a threaded pin 33 cooperating with the inner thread 29 of the piston 26 and a central portion 3H. Two rings 35 inserted in the middle portion form a first and a second flange, between which the end of the sleeve 21 provided with the bore 25 is rotatably but axially immovably arranged by means of a spring washer 36.

Den i sitt högra ändläge visade ställanordningen fungerar på följande sätt.The adjusting device shown in its right end position works in the following way.

Om drivmotorn 14 roterar i exempelvis den ena riktningen över- föres rotationsrörelsen via nedväxlingsanordningen 15-18 till muttern 19. Genom samverkan mellan muttergängan 20 och ytter- gängan 22 bibringas härigenom hylsan 21 rörelse i pilens 38 riktning, varvid bottenplattans 10 styrning 2H hindrar att, hylsan 21 roterar. _ Denna arbetsrörelse hos hylsan överföres via de båda ringarna 35 till inställningsskruven 31 och via den gängade tappen 33 till kolven 26. På den i kulskålen 30 inknäppta strålkastar- reflektorn överföras därför den med pilen 38 antydda rörelsen, varigenom svängning av reflektorn sker i'en riktning. ÜÄQQ994Z- 3 Om strålkastarreflektorns grundinställning skall justeras vrides manöverhandtaget 32 i exempelvis den ena riktningen.If the drive motor 14 rotates in one direction, for example, the rotational movement is transmitted via the downshift device 15-18 to the nut 19. By cooperating between the nut thread 20 and the outer thread 22, the sleeve 21 thereby imparts movement in the direction of the arrow 38, the bottom plate 10 preventing 2H. sleeve 21 rotates. This working movement of the sleeve is transmitted via the two rings 35 to the adjusting screw 31 and via the threaded pin 33 to the piston 26. On the headlamp reflector trapped in the ball cup 30, therefore, the movement indicated by the arrow 38 is transmitted, whereby the reflector is pivoted into the direction. ÜÄQQ994Z- 3 If the basic setting of the headlamp reflector is to be adjusted, turn the control lever 32 in, for example, one direction.

Eftersom hylsan 21 via ringarna 35 på inställningsskruven 31 nu bildar ett orörlígt upplag åstadkommer samverkan mellan den gängade tappen 31 och innergängan 29 att även kolven 26 förskjutes, varvid medbringaröppningen 27 förhindrar att kolven 26 roterar.Since the sleeve 21 now forms an immovable support via the rings 35 on the adjusting screw 31, the interaction between the threaded pin 31 and the inner thread 29 causes the piston 26 to be displaced as well, the carrier opening 27 preventing the piston 26 from rotating.

Rörelse av kolven 26 i motsatt riktning åstadkommas genom mot- satt rotation av antingen drivmotorn 14 eller handtaget 32.Movement of the piston 26 in the opposite direction is effected by opposite rotation of either the drive motor 14 or the handle 32.

Claims

a ﬂ eaesz-s 4 Patentkrav

1. Motor vehicle headlamp adjusting device, characterized by the following in combination: a) an electric drive motor (14) with a downshift device (15-18) is arranged in a housing (10, 11), b) a nut (19) is axially immovably arranged in the housing (10, 11) and connected to the downshift device (15-18), c) a sleeve (21) has an outer thread (22) cooperating with the nut (19) and is only axially displaceable in the housing (10, 11) and has an axial carrier opening (27), d) an adjusting screw (31) is axially immovably arranged in the sleeve (21), and ie) a piston (26) is displaceable in the carrier opening (27) and has an inner thread (29) which cooperates with the adjusting screw (31).

Adjusting device according to claim 1, characterized in that the sleeve (21) has a portion with the outer thread (22) and a carrier portion (23) displaceable in a guide (ZH) of the housing (10, 11). '*

Positioning device according to 1 fkrav 1 or2,1 <ä n n e 1; This means that the adjusting screw (31) has a threaded pin (33) cooperating with the inner thread (29) of the coil (26), and that the adjusting screw (31) is axially locked in a bore (25) of the sleeve (21). ) by means of two flanges (35), which are preferably formed by two stop rings inserted in the adjusting screw (31).

N. Adjusting device according to claim 3, characterized in that a spring washer (36) is inserted between one flange (35) of the adjusting screw (31) and the end portion of the sleeve (21), and that it exits the housing (10, 11) the sliding adjusting screw (31) is equipped with a control handle (32).

Adjusting device according to one of Claims 1 to H, characterized in that one end portion of the piston (26) is designed as a ball cup (30), in which a ball pin of the headlight reflector can be snapped. f mass-s

Adjusting device according to one of Claims 1 to 5, characterized in that the downshift device consists of a transmission with motor gear (15) and gears (16) and of a worm gear, the worm screw (17 ) is made in one piece with the gear (16) and whose worm wheel (18) is arranged on the nut (19).

Adjusting device according to one of Claims 1 to 6, characterized in that the housing has a bottom plate (10), which is fastened to an immovable part of the headlight, and a lid (11) which can be screwed together with the bottom plate (10).